If `no`, only messages sent by users will trigger the Zap. If `yes`, messages sent by users and slackbots will trigger the Zap.

**Warning**: Slackbots don't have profiles. If `yes`, don't depend on user profile information being present. Also, avoid [Zap loops](https://help.zapier.com/hc/en-us/articles/8496232045453-Zap-is-stuck-in-a-loop) where Zaps trigger and post slackbot messages to the same channel!

Only channels you are a member of will appear in this list. If you can't find your channel, click the Load More button or switch to the Custom tab and enter the channel's ID. Once live, the trigger will work even if you are not a member of the channel. **Note:** This trigger only supports attachment information for messages generated by bots.  If you need to retrieve attachment information from non-bots, see this  [help document](https://help.zapier.com/hc/en-us/articles/8495990498957#extracting-a-message-attachment-from-slack-human-messages-0-3).

Choose yes to trigger when someone creates a new name for an existing emoji.

Only channels you are a member of will appear in this list. If you can't find your channel, click the Load More button or switch to the Custom tab and enter the channel's ID. Once live, the trigger will work even if you are not a member of the channel.

Trigger on files created by a single user.

Trigger when files are shared with you. Please note that this will trigger on created files as well.

Linked mentions of this user will trigger the zap. **Make sure** to specify a value for one or both of username or a highlight word. Specifying both a username and a highlight word means that both the linked username and word need to be included in a message to trigger the zap.

Mentions of this word will trigger the zap. Case insensitive. **Make sure** to specify a value for one or both of username or a highlight word. Specifying both a username and a highlight word means that both the linked username and word need to be included in a message to trigger the zap.

Only triggers when this reaction is added to a message. Use the dropdown to select one of your team's custom emoji or select `Use a Custom Value` and enter the name of a standard emoji. Use this [cheat sheet](https://www.webpagefx.com/tools/emoji-cheat-sheet/) for reference and be sure not to include the colons. Note that you cannot use an emoji's alias in this field.

Only triggers on reactions added on messages in this public channel. Only channels you are a member of will appear in this list. If you can't find your channel, click the Load More button or switch to the Custom tab and enter the channel's ID. Once live, the trigger will work even if you are not a member of the channel.

Only triggers on reactions added by this user.

Search query to use for finding matching messages. See [the Slack Search Documentation](https://get.slack.help/hc/en-us/articles/202528808-Searching-in-Slack) for more information on constructing a query.

Sort messages by their match strength or by their date. Default is _score_.

Sort matching messages in ascending or descending order. Default is _descending_.

For most responses, we prettify the result we get from Slack. If we're missing a field you're expecting, set this to true

We search the normalized name, so don't worry about accents

The actual reminder text that should be sent to yourself or a user. To include URLs, [Slack uses this syntax](https://zapier.com/help/doc/tips-formatting-your-slack-messages#links).

Slack parses natural language like "in 15 minutes" or "every Thursday". Times are relative to when the Zap actually runs.

Pick a user to remind. If you pick no one, you will be reminded.

Specify text of the message to send. Check out the [formatting help doc](https://zapier.com/help/doc/tips-formatting-your-slack-messages) for advanced options.

If you choose `no`, this message will appear to come from you. Direct messages are always sent by bots.

Specify the bot name which appears as a bold username above the message inside Slack. Defaults to `Zapier`. When using `Schedule At`, this field will be ignored by slack.

Either an image url or an emoji available to your team (surrounded by `:`). For example, `https://site.com/icon_256.png` or `:robot_face:`. When using `Schedule At`, this field will be ignored by slack.

If you choose `yes`, a link to this Zap will be added to the end of the message, making it easy for you and your team to edit the Zap with one click.

If specified, this will upload the given image URL to Slack and attach it to the message separately.

Should Slack try to automatically expand links in this message? For example: turn a YouTube link into a playable widget.

If `no`, any usernames and channels mentioned won't be linked (or mentioned). Also affects `@channel` and `@group`. Unfortunately, `@here` notifications cannot be sent by Zapier.

Schedule the message to be posted later. Cannot be more than 120 days in the future. If you do schedule a message, rather than post it immediately, this Zap step will not return a `ts` or `permalink` field. This option does not support `Bot Name` and `Bot Icon` customization and will default to Zapier as bot name and icon.

Include a file to send along with your message. NOTE: Bot names/icons cannot be customized when sending a File.

If you want this to be part of a thread, you'll need the timestamp (Ts) of the parent message. For example: `1345232312616.1231232`.

If you get the message from a trigger, select "use a custom value" from the dropdown and [connect](https://zapier.com/help/create/basics/set-up-your-zap-action#customize-your-options) accordingly by selecting the Ts field.

Otherwise, add a search step and fetch the message you want.

If true, posts in the thread and channel. See [here](https://slack.com/help/articles/115000769927-Use-threads-to-organize-discussions-#start-or-reply-to-a-thread-pre-ia) for more info. Ignored unless the message is part of a thread.

Name for the channel to be created. Channel names are normalized by converting to lowercase, replacing any non-allowed characters with hyphens or underscore, and truncating to 80 characters.

Slack will auto-link @names and #channels where applicable.

Changing a user's email address will send an email to both the old and new addresses, and also post a slackbot to the user informing them of the change.

Update selected values on this user's profile. This argument may only be specified by **team admins** on paid teams. Defaults to your status, when blank.

Use any emoji that's available in your Slack team, with leading and trailing `:`. 

If emoji is blank when text isn't, `:speech_balloon:` is used by default. If both text and emoji are empty, your status will be cleared.

Provide a specific date & time for this status to expire. Statuses will _not expire_ by default. 

 You can also specify a duration for this status by entering in a value like `in 60 minutes`, for example. Check out other ways you can use this field [here](https://zapier.com/help/create/basics/understand-different-field-types-in-zaps#step-1).

This email will receive an invitation and a link to setup their profile.

Get/create one from Slack's [Legacy token generator](https://api.slack.com/custom-integrations/legacy-tokens#legacy_token_generator).

**Note:** Zapier's Slack app supports a [limited set of OAuth scopes/permissions](https://zapier.slack.com/apps/A024R9PQM-zapier?tab=more_info), thus many of Slack's API endpoints aren't currently feasible.

API docs for Slack are located here https://api.slack.com/methods

Requests can only be made to domains associated by this application. View [documentation](https://help.zapier.com/hc/en-us/articles/12899607716493) for more details.

These params will be URL-encoded and appended to the URL when making the request.

Authentication headers are included automatically

Zapier will apply these optional headers and values to the request in addition to any headers created as part of the authentication mechanism.

Zapier will pass this along raw. If you would like to provide complex JSON, try a "Code by Zapier" step to build the structure and pass it along here. For example, `{"foo": "bar"}` is perfectly valid.

Slack is a platform for team communication: everything in one place, instantly searchable, available wherever you go. Offering instant messaging, document sharing and knowledge search for modern teams.

Simplify your team's communication with Zapier’s Slack integration. Zapier integrations, called Zaps, let Slack interact with other apps you use. You can automatically send messages when something happens in another app or use your Slack message to set off automated tasks. You can even use Zaps to spin up homemade, no-code bots.

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